Operation grip for working machine



FIG. 1 is a front view of an operation grip for working machine showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof.

The portions of FIGS. 1-7 shown in coarse dot pattern and outlined in dashed lines form no part of the claimed design. 

CLAIM The ornamental design for an operation grip for working machine, as shown and described. 